Circuit/System Testing
WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the liftgate handle switch.
- Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
- If greater than the specified range, test the low reference circuit for an open/high resistance between the connector and the circuit splice.
- Ignition OFF, disconnect the harness connector at the liftgate close switch.
- Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
- If greater than the specified range, test the low reference circuit for an open/high resistance between the connector and the circuit splice.
- Ignition ON, verify the scan tool Liftgate Handle Sw. Status parameter is Inactive.
- If not the specified value, test the signal circuit terminal 1 at the liftgate close switch for a short to ground. If the circuit tests normal, replace the liftgate control module.
- Connect a 3 A fused jumper wire between the signal circuit terminal 1 and ground. Verify that the scan tool Liftgate Handle Sw. parameter is Active.
- If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the liftgate control module
- Ignition OFF, connect the harness connector at the liftgate close switch.
- Ignition ON, observe the scan tool Liftgate Handle Sw. Status parameter while pressing and releasing the liftgate close switch, the reading should change between Active and Inactive
- If the value is always Inactive or always Active, test or replace the liftgate close switch.
- If all circuits test normal, test or replace the liftgate handle switch.